US 12,175,169 B2
Method of designing a switchgear with arc-flash simulation and energy transmission thereof
Jeffrey Heckman, Fairport (CA); and Anaele Pin, Sherbrooke (CA)
Assigned to TECHNOLOGIES DUAL-ADE INC., Lachine (CA)
Filed by TECHNOLOGIES DUAL-ADE INC., Sherbrooke (CA)
Filed on Oct. 17, 2020, as Appl. No. 17/073,309.
Claims priority of provisional application 62/923,018, filed on Oct. 18, 2019.
Prior Publication US 2021/0117592 A1, Apr. 22, 2021
Int. Cl. G06F 30/20 (2020.01); G06F 30/10 (2020.01); G06F 30/23 (2020.01); G06F 111/10 (2020.01); G06F 119/02 (2020.01); G06F 113/08 (2020.01); G06F 119/08 (2020.01)
CPC G06F 30/20 (2020.01) [G06F 30/10 (2020.01); G06F 30/23 (2020.01); G06F 2111/10 (2020.01); G06F 2113/08 (2020.01); G06F 2119/02 (2020.01); G06F 2119/08 (2020.01)] 12 Claims
OG exemplary drawing
 
1. A method for manufacturing a switchgear cabinet that would be able to sustain a stress caused by an arc-flash with energy transmission thereof involving a simulation on a computing device, the method comprising:
generating a meshed computing model of an initial physical switchgear cabinet and providing to the computing device the meshed computing model of the physical switchgear cabinet having a meshed internal volume defining an air domain therein, the air domain having a set of initial ambient conditions associated therewith;
providing to the computing device an input energy value of the arc-flash;
providing to the computing device an identification of an arc-flash location for the arc-flash to take place in the internal volume of the model of the physical switchgear cabinet;
the computing device performing the simulation, comprising:
the computer device computing the meshed computing model of the physical switchgear cabinet made of a plurality of using Lagrange elements;
the computing device computing a meshed computing model of the air domain using made of a plurality of Arbitrary-Lagrange-Eulerian (ALE) solid elements;
the computing device overlaying the plurality of ALE solid elements over the plurality of Lagrange elements;
the computing device computing ambient boundaries of the arc-flash, and an initial location ambient boundary condition associated therewith;
the computing device computing diffusion in the air domain of the input energy of the arc-flash into thermal energy over the plurality of Lagrange elements and the plurality of ALE solid elements, and registering said diffusion as a thermal history of deposition;
the computing device multiplying data of the thermal history of deposition by a specific heat value thereby calculating energy values;
the computing device computing a thermal energy magnitude of the arc-flash;
the computing device calibrating iteratively the ambient conditions for the energy to diffuse into the air domain until the thermal history of deposition matches the thermal energy magnitude of the arc-flash within an acceptable error range; and
the computing device rendering the providing simulation data of the meshed simulation model made of the plurality of Lagrange elements; and
manufacturing the switchgear cabinet according to the simulation data.